leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

tracing: Remove NULL check from current in tracing_generic_entry_update().

Browse Source 
I can't imagine when or why `current' would return a NULL pointer. This
check was added in commit
      72829bc3d6 ("ftrace: move enums to ftrace.h and make helper function global")

but it doesn't give me hint why it was needed.

Assume `current' never returns a NULL pointer and remove the check.

Link: https://lkml.kernel.org/r/20210125194511.3924915-5-bigeasy@linutronix.de

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Sebastian Andrzej Siewior 2021-01-25 20:45:11 +01:00 committed by Steven Rostedt (VMware)
parent fe427886bf
commit 5817708493
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/trace_events.h
View File

@ -152,10 +152,8 @@ static inline void tracing_generic_entry_update(struct trace_entry *entry,
unsigned short type,
unsigned int trace_ctx)
{
struct task_struct *tsk = current;
entry->preempt_count = trace_ctx & 0xff;
entry->pid = (tsk) ? tsk->pid : 0;
entry->pid = current->pid;
entry->type = type;
entry->flags = trace_ctx >> 16;
}